public unsafe void tick()
{
if (myHandle == 0)
{
return;
}
if (TimeSource.now() > myVideoSignalTime + 2.0)
{
Warn.print("No video frames arriving");
//stopStream();
}
CameraVideoStreamFrameHeader_t frameHeader = new CameraVideoStreamFrameHeader_t();
EVRTrackedCameraError error = OpenVR.TrackedCamera.GetVideoStreamFrameBuffer(myHandle, myFrameType, IntPtr.Zero, 0, ref frameHeader, (uint)Marshal.SizeOf(frameHeader));
if (error != EVRTrackedCameraError.None)
{
Warn.print("Failed to get frame header");
return;
}
if (frameHeader.nFrameSequence == myLastFrameSequence)
{
//frame hasn't changed yet
return;
}
myVideoSignalTime = TimeSource.now();
// Frame has changed, do the more expensive frame buffer copy
fixed(byte *ptr = myFrameBuffer)
{
error = OpenVR.TrackedCamera.GetVideoStreamFrameBuffer(myHandle, myFrameType, (IntPtr)ptr, myFrameBufferSize, ref frameHeader, (uint)Marshal.SizeOf(frameHeader));
if (error != EVRTrackedCameraError.None)
{
Warn.print("Failed to get frame buffer");
return;
}
}
if (frameHeader.standingTrackedDevicePose.bPoseIsValid == true)
{
Matrix4 standingView = VR.convertToMatrix4(frameHeader.standingTrackedDevicePose.mDeviceToAbsoluteTracking);
Matrix4 seated2Standing = VR.convertToMatrix4(VR.vrSystem.GetSeatedZeroPoseToStandingAbsoluteTrackingPose());
myView = standingView * seated2Standing.Inverted();
}
invertBuffer();
//invert buffer from first pixel being top left to bottom left
myTexture.paste(myFrameFlipBuffer, Vector2.Zero, new Vector2(myFrameWidth, myFrameHeight), PixelFormat.Rgba);
}
public bool startStream()
{
myVideoSignalTime = TimeSource.now();
OpenVR.TrackedCamera.AcquireVideoStreamingService(OpenVR.k_unTrackedDeviceIndex_Hmd, ref myHandle);
if (myHandle == 0)
{
Warn.print("AcquireVideoStreamingService() failed");
return(false);
}
HmdMatrix44_t proj = new HmdMatrix44_t();
EVRTrackedCameraError error = OpenVR.TrackedCamera.GetCameraProjection(OpenVR.k_unTrackedDeviceIndex_Hmd, myFrameType, 0.01f, 10.0f, ref proj);
if (error != EVRTrackedCameraError.None)
{
Warn.print("Error getting camera projection");
}
myProjection = VR.convertToMatrix4(proj);
Info.print("Started VR Camera stream");
myIsStreaming = true;
return(true);
}
